Commit | Line | Data |
---|---|---|
3b600ead TL |
1 | #include <signal.h> |
2 | /* | |
3 | * lpr -- on-line printer spooler | |
4 | * normally invoked through opr | |
5 | */ | |
6 | ||
7 | char tfname[] = "/usr/lpd/tfaXXXXX"; | |
8 | char cfname[] = "/usr/lpd/cfaXXXXX"; | |
9 | char lfname[] = "/usr/lpd/lfaXXXXX"; | |
10 | char dfname[] = "/usr/lpd/dfaXXXXX"; | |
11 | int nact; | |
12 | int tff; | |
13 | int mailflg; | |
14 | char person[10]; | |
15 | int inchar; | |
16 | int maxrec = 400; | |
17 | ||
18 | main(argc, argv) | |
19 | int argc; | |
20 | char *argv[]; | |
21 | { | |
22 | register char *arg, *remote; | |
23 | int c, f, flag; | |
24 | int out(); | |
25 | ||
26 | pidfn(); | |
27 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) | |
28 | signal(SIGHUP, out); | |
29 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) | |
30 | signal(SIGINT, out); | |
31 | if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) | |
32 | signal(SIGQUIT, out); | |
33 | remote = "$ remote **,onl"; | |
34 | flag = 0; | |
35 | tff = nfile(tfname); | |
36 | while (argc>1 && (arg = argv[1])[0]=='-') { | |
37 | if (arg[1] && arg[2]) { | |
38 | remote[12] = arg[1]; | |
39 | remote[13] = arg[2]; | |
40 | remote[14] = 0; | |
41 | } else switch (arg[1]) { | |
42 | ||
43 | case '-': | |
44 | remote[12] = 'r'; | |
45 | remote[13] = '1'; | |
46 | remote[14] = '\0'; | |
47 | break; | |
48 | ||
49 | case 'c': | |
50 | flag = '+'; | |
51 | break; | |
52 | ||
53 | case 'r': | |
54 | flag = '-'; | |
55 | break; | |
56 | ||
57 | case 'm': | |
58 | mailflg = 1; | |
59 | break; | |
60 | } | |
61 | argc--; | |
62 | argv++; | |
63 | } | |
64 | ident(); | |
65 | if(argc == 1) | |
66 | copy(0); | |
67 | while(--argc) { | |
68 | arg = *++argv; | |
69 | if(flag == '+') | |
70 | goto cf; | |
71 | if(*arg == '/' && flag != '-') { | |
72 | card('F', arg); | |
73 | nact++; | |
74 | continue; | |
75 | } | |
76 | if(link(arg, lfname) < 0) | |
77 | goto cf; | |
78 | card('F', lfname); | |
79 | card('U', lfname); | |
80 | lfname[inchar]++; | |
81 | nact++; | |
82 | goto df; | |
83 | ||
84 | cf: | |
85 | f = open(arg, 0); | |
86 | if(f < 0) { | |
87 | printf("Cannot open %s\n", arg); | |
88 | continue; | |
89 | } | |
90 | copy(f); | |
91 | close(f); | |
92 | ||
93 | df: | |
94 | if(flag == '-') { | |
95 | f = unlink(arg); | |
96 | if(f < 0) | |
97 | printf("Cannot remove %s\n", arg); | |
98 | } | |
99 | } | |
100 | ||
101 | if(nact) { | |
102 | tfname[inchar]--; | |
103 | f = link(tfname, dfname); | |
104 | if(f < 0) { | |
105 | printf("Cannot rename %s\n", dfname); | |
106 | tfname[inchar]++; | |
107 | out(); | |
108 | } | |
109 | unlink(tfname); | |
110 | execl("/usr/lib/lpd", "lpd", 0); | |
111 | dfname[inchar]++; | |
112 | printf("Daemon doesn't exist\n"); | |
113 | exit(0); | |
114 | } | |
115 | out(); | |
116 | } | |
117 | ||
118 | copy(f) | |
119 | int f; | |
120 | { | |
121 | int ff, i, nr, nc; | |
122 | static int buf[256]; | |
123 | ||
124 | card('F', cfname); | |
125 | card('U', cfname); | |
126 | ff = nfile(cfname); | |
127 | nc = 0; | |
128 | nr = 0; | |
129 | while((i = read(f, buf, 512)) > 0) { | |
130 | write(ff, buf, i); | |
131 | nc += i; | |
132 | if(nc >= 512) { | |
133 | nc -= 512; | |
134 | nr++; | |
135 | if(nr > maxrec) { | |
136 | printf("Copy file is too large\n"); | |
137 | break; | |
138 | } | |
139 | } | |
140 | } | |
141 | close(ff); | |
142 | nact++; | |
143 | } | |
144 | ||
145 | card(c, s) | |
146 | int c; | |
147 | char s[]; | |
148 | { | |
149 | char *p1, *p2; | |
150 | static char buf[512]; | |
151 | int col; | |
152 | ||
153 | p1 = buf; | |
154 | p2 = s; | |
155 | col = 0; | |
156 | *p1++ = c; | |
157 | while((c = *p2++) != '\0') { | |
158 | *p1++ = c; | |
159 | col++; | |
160 | } | |
161 | *p1++ = '\n'; | |
162 | write(tff, buf, col+2); | |
163 | } | |
164 | ||
165 | ident() | |
166 | { | |
167 | int c, n; | |
168 | register char *b1p, *pp, *b2p; | |
169 | static char b1[100], b2[100]; | |
170 | ||
171 | b1p = b1; | |
172 | if(getpw(getuid(), b1p)) { | |
173 | b1p = "pdp::::m0000,m000:"; | |
174 | } | |
175 | n = 0; | |
176 | b2p = b2; | |
177 | while(*b2p++ = "$ ident "[n++]); | |
178 | b2p--; | |
179 | n = 5; | |
180 | while(--n) while(*b1p++ != ':'); | |
181 | while((*b2p++ = *b1p++) != ':'); | |
182 | b2p[-1] = ','; | |
183 | b1p = b1; | |
184 | pp = person; | |
185 | while((c = *b1p++) != ':') { | |
186 | *b2p++ = c; | |
187 | *pp++ = c; | |
188 | } | |
189 | *b2p++ = 0; | |
190 | *pp++ = 0; | |
191 | card('L', person); | |
192 | if (mailflg) | |
193 | card('M', person); | |
194 | } | |
195 | ||
196 | pidfn() | |
197 | { | |
198 | register i, j, c; | |
199 | int s; | |
200 | int p; | |
201 | ||
202 | s = p = getpid(); | |
203 | p &= 077777; | |
204 | i = 0; | |
205 | while(tfname[i] != 'X') | |
206 | i++; | |
207 | i += 4; | |
208 | for(j=0; j<5; j++) { | |
209 | c = (p%10) + '0'; | |
210 | if(s<0 && j==4) | |
211 | c += 4; | |
212 | p /= 10; | |
213 | tfname[i] = c; | |
214 | cfname[i] = c; | |
215 | lfname[i] = c; | |
216 | dfname[i] = c; | |
217 | i--; | |
218 | } | |
219 | inchar = i; | |
220 | } | |
221 | ||
222 | nfile(name) | |
223 | char *name; | |
224 | { | |
225 | register f; | |
226 | ||
227 | f = creat(name, 0666); | |
228 | if(f < 0) { | |
229 | printf("Cannot create %s\n", name); | |
230 | out(); | |
231 | } | |
232 | name[inchar]++; | |
233 | return(f); | |
234 | } | |
235 | ||
236 | out() | |
237 | { | |
238 | register i; | |
239 | ||
240 | signal(SIGHUP, SIG_IGN); | |
241 | signal(SIGINT, SIG_IGN); | |
242 | signal(SIGQUIT, SIG_IGN); | |
243 | i = inchar; | |
244 | while(tfname[i] != 'a') { | |
245 | tfname[i]--; | |
246 | unlink(tfname); | |
247 | } | |
248 | while(cfname[i] != 'a') { | |
249 | cfname[i]--; | |
250 | unlink(cfname); | |
251 | } | |
252 | while(lfname[i] != 'a') { | |
253 | lfname[i]--; | |
254 | unlink(lfname); | |
255 | } | |
256 | while(dfname[i] != 'a') { | |
257 | dfname[i]--; | |
258 | unlink(dfname); | |
259 | } | |
260 | exit(0); | |
261 | } |